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docker41 [41]
3 years ago
6

Plz help me well mark brainliest if correct!!....

Mathematics
1 answer:
True [87]3 years ago
8 0

Answer:

B) Fifth Grade Boys

Step-by-step explanation:

The far right green line represents the fifth grade boys, and you can see that this lines up right in the middle of 50 and 60.

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An important problem encountered by personnel directors and others faced with the selection of the best in a finite set of eleme
SVETLANKA909090 [29]

Answer:

1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the engineers are selected is not important, so the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

10 engineers selected from a set of 20.

5 best, from a set of 5.

Other 5, from a set of 20-5 = 15.

D = C_{5,5}*C_{15,5} = \frac{5!}{5!(5-5)!}*\frac{15!}{5!(15-5)!} = 3003

Totao outcomes:

10 engineers selected from a set of 20.

T = C_{20,10} = \frac{20!}{10!(20-10)!} = 184756

Probability:

p = \frac{D}{T} = \frac{3003}{184756} = 0.0163

1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20

5 0
3 years ago
the ratio of coloured papers to white papers is 3.8 if there are 48 white papers how many coloured papers are there​
Talja [164]
3:8
Colored papers: white papers
White papers: 48
48/8= 6
3x6 = 18

There are 18 colored papers.
6 0
3 years ago
What is the intersection of y=7 and y=1\2x+6
kotegsom [21]
Y=7 is just a straight horizonal line that is perpendicular to the y axis at 7

and y=1/2x+6, is in y=mx+b form where m=slope and b=yintercept so

to find the intersection, yo just find when both sentances are correct so

y=7
subsitute that into y=1/2x+6

7=1/2x+6
subtract 6 from both sides
1=1/2x
multiply both sides by 2
2=x

so the point (2,7) is the intersection
8 0
3 years ago
Which experssion is equivalent to 4 to the power of 6 times 4 to the power of negative 8?
PilotLPTM [1.2K]
4 to the power of negative two beacause u add the exponents 6+ negative 8
8 0
3 years ago
A recipe calls for 1 3/4 cups of bread flour and 1 2/3 cups of whole wheat flour. what is the total amount of flour used in the
Ivahew [28]

1 \frac{3}{4}  = 1.75 \\ 1 \frac{2}{3}  = 1.66
so
1.75 + 1.66 = 3.41 \\ 3.41 = 3 \frac{5}{12}
6 0
3 years ago
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